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Home >> Volvo >> 2007 >> V50 Base, 2.4 39 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 1 Of 9 >> ECM-120D: Mass Air Flow. Signal Missing (B5254T3; 2005-2007) >> Signal Too Low >> Checking The Connector

Checking The Connector

Check the mass air flow (MAF) sensor connector. Check for contact resistance and oxidation.

Remedy as necessary.

Other information 

Fig 1: Identifying Mass Air Flow (MAF) Sensor
GLL102920Courtesy of VOLVO CARS CORPORATION